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Annotation of Net2/arch/i386/floppy/cat/cat.c, revision 1.1

1.1     ! root        1: /*-
        !             2:  * Copyright (c) 1991 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  *
        !            33:  *     @(#)cat.c       5.2 (Berkeley) 5/9/91
        !            34:  */
        !            35: 
        !            36: int eval;
        !            37: 
        !            38: main(argc, argv)
        !            39:        int argc;
        !            40:        char **argv;
        !            41: {
        !            42:        register int fd, nr;
        !            43:        char buf[2048];
        !            44: 
        !            45:        if (*++argv && **argv == '-') {
        !            46:                err("no options available", 0);
        !            47:                _exit(1);
        !            48:        }
        !            49:        for (eval = 0; *argv; ++argv)
        !            50:                if ((fd = open(*argv, 0, 0)) < 0)
        !            51:                        err(*argv, 1);
        !            52:                else {
        !            53:                        while ((nr = read(fd, buf, sizeof(buf))) > 0)
        !            54:                                if (write(1, buf, nr) != nr) {
        !            55:                                        err(*argv, 1);
        !            56:                                        break;
        !            57:                                }
        !            58:                        if (nr == -1)
        !            59:                                err(*argv, 1);
        !            60:                }
        !            61:        _exit(eval);
        !            62: }
        !            63: 
        !            64: #define        PROGNAME        "cat: "
        !            65: #include "errfunction"

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